Here is the full list of all 23 Turbo Dismount achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Pull ten somersaults in a single dismount.
Perform 1000 decapitations.
Totally demolish all vehicles (that can be demolished).
Fully obliterate Mr. Dismount.
Cut down 100 trees.
Launch three consecutive dismounts at max velocity.
Reach a record time on Skid Marks.
Launch 1000 dismounts.
Nail it 100 times.
Complete 100 dismounts with the Pink Lightning.
Drive through 1000 turbo pads.
Try everything once.
Detonate ten mines in a single dismount on Run DMZ.
Cross the finish line on Skid Marks at 88mph.
Do a successful barrel roll and landing.
Play a Steam Workshop level.
Customize Mr. Dismount or a vehicle.
Get hit by five different NPC vehicles in T-Junction.
Reach a height of 1000ft (305m) in Space Program.
Do ten strikes with the Bowling Pins.
Totally demolish a single vehicle.
View a replay in slow motion.
Lose only a single limb during a single dismount.